Whink Rust Guard Toilet Bowl Cleaner

Rust Guard Bowl Cleaner - This unique formula prevents the formation of rust and hard water build-up in the toilet bowl and reservoir. The concentrated time-release tablet lasts up to a full month. Contains no acids, caustics, chlorine bleach, phosphates, or dyes. Safe for plumbing and septic systems. - Size: 12 oz, Type: 6 ct Tablets, Fragrance: Unscented, Pkg Qty: 6, Package Type: Box